Here I checked the wedsite http://plaza.rakuten.co.jp/dokusyojump/
for the top 8. this one is Japanese rating only (0 30)/
-I took out the yaoi because they are not included in the straight pairing *I left the Japanese term for each of them too ( as the pair name)
1. Okita and Kagura 沖神
2. Gin-san and Tae-chan 銀妙
3. Kamui and Kagura 神威
4. Gin-san and kagura 銀神
5. Gin-san and Tsukuyo-san 銀月
6. Hijikita and mitsuba
7.Zura uh.. I mean Katsura ! and Ikumatsu-san 桂幾
8. Sakamoto and Mutsu 坂陸奥
the reason why I put top 8 because most of then are very close to each others. this is clollected from a weds poll not overall the entire fan
number 2and 3 are close and 5 to 8 too.
.To be honest their rating are pretty accurate for me I personally love Okita and Kagura from the beginning. about Gin-san Im not so sure maybe he'll be single but the choice between Otae-chan and tsukuyo-san is pretty hard... It's all depend on Sorachi-sensei hahha oh and I heard that Otae-chan later on will have a new appearances too. cant wait until the " the end" of Gintama to see that lol xD !!

Well, I don't really see any point in pairing them but I do have an opinion.

Shinpachi - KIRARA !!! ( don't tell me you have forgotten about her, besides otsu is so unlikely)
Otae - Kondo I know how this looks, but I really believe in this.
Kagura - No one we know so far
Sogo - no one we know sofar
Hijikata- No one
Gintoki - No one
Rest is just waste of time. I really don't think any other character would pair up besides those two. But for the sake of the series , don't pair them, at least not yet. :D

I go with a lot of the mainstream couplings for het(which is pretty unusual for me):
Ikumatsu and Katsura,
Sakamoto and Mutsu,
Kondo and Otae

For Shinpachi....I like him with either Kirara or Kagura....I think he could work with Kagura.

I really despise Okita and Kagura though....sorry. (It is NOT just because I'm so addicted to HijiOki) I also feel like Gin should be single, or to put it better......he belongs to everyone in Gintama.XD

For Yaoi and Yuri:
I somewhat like Kyubei/Otae, but KonTae is above it
Hijikata/Okita ALL THE WAY!!!!!
TakaZura

My mind goes wild with pairing ideas, but these are the ones that stick out.

My favourite couple is Gintoki x Tsukuyo Is really cool and rather unusual for the main character to end up with the latest arrival of the female cast, but she's perfect for him and they're so meant to be together. Other girls who are in the story from the beginning couldn't dream of getting as close to Gin as Tsukki managed. Also people say that if he gets a girlfriend he'd loose his appeal, but I don't think that's gonna happen with Tsukuyo, actually it might even increase. She's got the title of Gintoki's woman written all over.

Other favourite is Sougo x Kagura, of course. He's probably a little bit more into her than she is into him, but if he'd let his guard down and make his feelings evident, she'll fall for him BIG TIME!

Zura x Ikumatsu. That's pretty obvious even if they don't get much screen time together.

Don't know why people keep saying that no one would go with Shinpachi. He's a nice guy and good looking, I'd totally date him. Plus he had a few moments with girls. That girl with cat ears, the pen pal, and how can we forget Pandemomium (LOL) Even with Otsu he might have a chance, after all out of all her fan base he's the only one who's not an old disgusting lolicon. Could totally happen!

Kondo x Otae. Because she likes him after all, she probably just rejects him because she hopes to get Gin or that he might change one day, but I think she'll end up with Kondo definitely. How can you resist a guy who's so much in love, would do anything for you, and is also quite handsome!? Don't get why people call him gorilla, he's not THAT hairy!

Am I the only one who thinks that Hijikata should be with Okita ...but I do have some good reasons though
1. Just becasue they are both dudes and hate each other doesn't means that they shouldnt ended up together right? Gin tama is all about breaking the tradition,,, y not?
2. They look reallly cute together :"P